Passive Components

A passive component is a module that does not require energy to operate, except for the available alternating current (AC) circuit that it is connected to. A passive module is not capable of power gain and is not a source of energy. A typical passive component would be: resistors, inductors, capacitors and transformers which together are required to build any electrical or electronic circuit.

Passive devices can be used individually or connected together within a circuit, either in a series or in a parallel combination to control complex circuits or signals.

Types of Passive Components

  • Capacitors

A capacitor is a component that can gather and hold a charge in a way that is similar to how a battery functions. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to power source. One plate accumulates positive charge and the other plate accumulates negative charge. It can hold the charge even when the voltage is no longer applied. Different types of capacitors are film capacitors, mica capacitors, ceramic capacitors, electrolytic capacitors, aluminium electrolytic capacitors, tantalum electrolytic capacitors and power factor correction capacitors

  • Resistors

A Resistor is an electrical device that resists the flow of electrical current. Although a resistor does not amplify or shape the electric current in any way its a powerful little device as it enables you to put the brakes on current flow in a very controlled way

  • Inductors

An inductor is a passive device that can store or deliver energy but cannot generate it. An ideal inductor is lossless, meaning that it can store energy indefinitely as no energy is lost as heat. Inductors are sometimes known as coils, chokes, electromagnets and solenoids

  • Ferrite Cores

A ferrite core is a ceramic compound that includes a mix of iron and another type of metal. Ferrite is common in many types of electrical components, including antennas. This magnetic core features wound components, such as windings from a transformer and inductors. It is useful because it offers low electrical conductivity along with high magnetic permeability.

  • Surge Protection Components

Surge protectors are a part of nearly every home and office today. They provide your expensive electronic devices with added protection against surges of electricity, which would ultimately destroy them.

Antennas
Antennas
Capacitors
Capacitors
Crystals, Oscillators & Resonators
Crystals, Oscillators & Resonators
EMI Filters & Protection
EMI Filters & Protection
Fixed Resistors
Fixed Resistors
Inductors
Inductors
Passive Components Kits
Passive Components Kits
Rotary Encoders
Rotary Encoders
Sounder, Buzzer & Microphone Components
Sounder, Buzzer & Microphone Components
Surge Protection Components
Surge Protection Components
Variable Resistors
Variable Resistors

154302 Products showing for Passive Components

2100 of 999+
Wurth Elektronik 22μF Aluminium Electrolytic Capacitor 50V dc, Surface Mount - 865080643008
  • RS Stock No. 839-1874
  • Mfr. Part No. 865080643008
Each (In a Pack of 25)
£0.217(exc. VAT)
Yageo 150Ω, 0402 (1005M) Thick Film SMD Resistor ±1% 0.0625W
  • RS Stock No. 198-7667
  • Mfr. Part No. RC0402FR-07150RL
Each (On a Tape of 100)
£0.004(exc. VAT)
CHEMI-CON 330μF Surface Mount Polymer Capacitor, 25V
  • RS Stock No. 251-4898
  • Mfr. Part No. HHXC250ARA331MJA0G
Each
£1.63(exc. VAT)
Antenova SR4G008 Square Omnidirectional GPS Antenna with SMA Connector
  • RS Stock No. 223-1064
  • Mfr. Part No. SR4G008
Each (In a Pack of 5)
£2.192(exc. VAT)
Phoenix Contact Lightning Arrester 255 V ac Maximum Voltage Rating 30kA Maximum Surge Current Lightning Arrester
  • RS Stock No. 249-2995
  • Mfr. Part No. 1168940
Each
£319.31(exc. VAT)
Wurth Elektronik Dual Coupled Inductor Ferrite Core , 33 μH
  • RS Stock No. 163-4277
  • Mfr. Part No. 744873330
Each (On a Reel of 500)
£0.955(exc. VAT)
TE Connectivity RN73 147Ω, 0805 (2012M) Thin Film SMD Resistor ±0.1% 0.1W
  • RS Stock No. 614-5503P
  • Mfr. Part No. RN73C2A147RB
Each (Supplied on a Reel)
£0.20(exc. VAT)
TDK Single Layer Ceramic Capacitor (SLCC) 1000pF 3kV dc ±10%, CK45, Through Hole
  • RS Stock No. 253-2813
  • Mfr. Part No. CK45-B3FD102KYGNA
Each (On a Tape of 20)
£0.181(exc. VAT)
KOA 20mΩ, 0612 (1632M) Thick Film Resistor 1% 1.5W
  • RS Stock No. 244-8650P
  • Mfr. Part No. WU732B15TTD20L0F
Each (Supplied on a Reel)
£0.226(exc. VAT)
Panasonic 270μF Surface Mount Polymer Capacitor, 16V dc
  • RS Stock No. 871-1969P
  • Mfr. Part No. 16SVPG270M
Each (Supplied on a Reel)
£1.465(exc. VAT)
G204 1R0 5% AA G88
  • RS Stock No. 607-696
  • Mfr. Part No. G24071931008J7A000
Each
£1.41(exc. VAT)
ERJUP Resistor Thick Film 0603 1% 10R
  • RS Stock No. 243-2107P
  • Mfr. Part No. ERJUP3F10R0V
Each (Supplied on a Reel)
£0.042(exc. VAT)
Vishay P16 10kΩ Rotary Potentiometer 1-Gang Panel Mount, P16NM103MAB15
  • RS Stock No. 167-8735
  • Mfr. Part No. P16NM103MAB15
Each (In a Box of 20)
£17.788(exc. VAT)
Rubycon 220μF Aluminium Electrolytic Capacitor 35V dc, Radial, Through Hole - 35YXH220MEFC10X12.5
  • RS Stock No. 725-8900
  • Mfr. Part No. 35YXH220MEFC10X12.5
Each (In a Pack of 10)
£0.205(exc. VAT)
RS PRO 10kΩ, 1206 (3216M) Thin Film Resistor 0.1% 2W
  • RS Stock No. 243-0519P
Each (Supplied on a Reel)
£1.198(exc. VAT)
KYOCERA AVX 470nF MLCC, 100V dc V, ±10% , SMD
  • RS Stock No. 174-7413
  • Mfr. Part No. 12061C474KAT2A
Each (On a Reel of 2000)
£0.074(exc. VAT)
TE Connectivity 1-2823598-1 Multi-Band Antenna
  • RS Stock No. 467-707
  • Mfr. Part No. 1-2823598-1
Each
£389.44(exc. VAT)
Murata 1μF Multilayer Ceramic Capacitor MLCC, 50V dc V, ±10% , SMD
  • RS Stock No. 276-3739
  • Mfr. Part No. GRM155R61H105KE05D
Each (On a Tape of 100)
£0.036(exc. VAT)
Yageo 120Ω, 0805 (2012M) Thick Film Surface Mount Fixed Resistor ±1% 125mW
  • RS Stock No. 242-6889
  • Mfr. Part No. RC0805FR-07120RL
Each (On a Tape of 100)
£0.008(exc. VAT)
Phoenix Contact, BLT-T3-230-A Surge Suppressor Unit 230 V ac Maximum Voltage Rating 4kA Maximum Surge Current Type 3
  • RS Stock No. 239-5024
  • Mfr. Part No. 1038841
Each (In a Pack of 10)
£47.329(exc. VAT)
Results per page
1
2100
7716

Guides & Articles

Article image
LED Resistor Value Calculator
A calculator designed to help you understand what resistance value you require from your LED resistor, in order to ensure safety for your LED lighting.
Learn more
Article image
Resistors Guide
What are the different types of resistors? Learn more in our comprehensive guide.
Read more
Article image
Potentiometers Guide
Our potentiometers guide will help you understand their uses, how they work, the various types and characteristics.
Read more
Article image
A Guide to Voltage Controlled Oscillators
This guide covers voltage controlled oscillators, explaining what they are, the different types available, and examples of how they fit into a circuit.
Explore VCOs

Related links